The Polaris machine with the exception of the old Predator does not have a wet clutch system. ATV/Motorcycle oils are designed to accommodate the clutch when they share the same oil with the engine so the friction modifiers are LEFT OUT. This is so enough friction can occur to operate the clutch without slippage. In short..the oil is designed to allow more friction to accommodate the wet clutch and lubricate the engine too. This is why you can’t pour automotive oil with all the friction modifiers in it into a jap motorcycle or 400ex Honda for example. The oil will be too " slick" and will cause the clutch to slip. But that sacrifice made for the clutch applies to all the other moving parts. It’s actually a sacrifice made in order to be able to lube the engine AND let the clutch grab enough to work Follow me??
Now to my point. Why on earth would Polaris design it’s oil without the friction modifier additives when their machines don’t have wet clutch??? Do a Amsoil search and it comes up recommendation 5w-50 ATV oil for Sportsman 570 and clearly states it has no friction modifiers .
The friction modifiers ARE A GOOD THING!! Since we have no wet clutch we can use oil that has the additives that make it as "slick" and lubricious as possible! So it evades me why people keep pouring in this oil which is engineered to allow more friction into engines that share fluids with its clutch system. Harley Davidson big twins are the same way. I quit using motorcycle oil and switched to a high quality racing oil for cars and it ran cooler and all the top end ticking Harley’s are known for disappeared. Why?? Because I added a oil that contained friction modifiers and it lubed my top end much better. ( Harley guys…it was Valvoline VR1 Synthetic Racing Oil).
Just a thinker for y’all. Take it or leave it. But a ATV/Motorcycle oil is designed to allow more friction for a reason, and not having that reason (clutch) to worry about we should be putting in the slickest lubricant we possibly can. ATV-MC wet clutch approved oil is a meet in the middle sacrifice between lubricating the engine but not so damn good that it makes the clutch slip.
sportsman 570 hear complaints about heat. I’m ready to change break in oil and have chosen to use Amsoil Signature Series 5w-50 instead of Amsoil ATV 5w-50 for reasons above. Will report back on any internal engine noise reduction or heat reduction that occurs.
Btw…the Signature series 5w-50 was designed for the high HP Ford Mustang engine that requires 5-50 oil. It has all the goodies in it to make the oil as slick as possible. its the only 5-50 oil I could find that didn’t have the friction modifiers left out. Can’t wait to see the results
AND NO…I’m not saying your Polaris wet clutch approved or other MC oil is going to grenade your engine. Im only saying we can reap the advantage of not having a wet clutch system and use oils fully focused on eliminating as much friction between moving parts as possible.
